Do you install flooring in St. Peters?

Yes. St. Peters is 16.2 road miles east of the store and every address in the ZIP is inside the area measured from Wentzville, alongside the rest of the four counties. The St. Peters page explains why this is a replacement market rather than a new build one, with a housing stock centred on the 1970s and 1980s. This page takes the tradeoff that follows from it, the one homeowners here weigh more often than any material question: whether the new floor goes on top of what is already there, or whether what is already there comes up first.

What going over the top gains you

Real things, and they are worth naming before the argument against. Less labour, because nothing has to be lifted, scraped and carried out. Less dust and less debris in a house somebody is living in. And a sound, flat existing floor is a genuinely stable base, sometimes flatter and more solid than the subfloor beneath it.

There is a fourth reason that gets less airtime. Some old resilient flooring and the adhesive under it, in houses of a certain era, is material that a testing laboratory should look at before anybody starts breaking it up. That is a question for a testing professional rather than for a flooring showroom, and it is the sort of thing worth resolving before a plan is made. Where the answer says leave it undisturbed, covering it over rather than removing it is a recognised approach and not a shortcut.

What it gives up, and where the height goes

Every layer you add raises the finished floor, and the height has to go somewhere. It goes into the gap under each interior door, which is finite. It goes into the threshold at every room you are not touching, so a doorway that used to be flat becomes a small step. It goes into the toe kick and the clearance under a counter, which is how an appliance ends up not sliding back into its slot. And it goes into the stairs, where the top riser gets shorter by exactly the thickness of the new floor while every other riser stays the same. A flight with one riser out of step with the rest is the kind of thing feet notice before eyes do.

The second thing you give up is information. Going over the top means nobody sees the subfloor. A soft spot stays soft. A squeak stays a squeak, now under two floors instead of one. A slow leak under a dishwasher goes on doing whatever it was doing, and the first anyone knows about it is when the new floor telegraphs it. Taking the old covering up is the only version of this job where the surface underneath actually gets inspected, which is the whole reason the measure looks at what is down now before recommending either route.

And some materials simply cannot go over. Carpet comes up, always. Anything soft or cushioned underneath a rigid floor is a problem rather than a base, which is the same reasoning behind the question about reusing old pad. Beyond that, the manufacturer's installation instructions define what counts as an acceptable substrate for their product, and those instructions are worth reading before a plan gets made rather than after.

Where each side wins

Going over tends to win where the existing floor is hard, flat, bonded and staying put, where the room has no door that is already tight, and where nothing about the room suggests a moisture source. A single bath going from one tile to another, a basement slab already covered with something sound, a room with no interior door at all.

Taking it up tends to win on a whole main level, where a few added heights compound across a lot of doorways, and on any floor that has been down long enough that nobody remembers what happened to it. It also wins wherever there is already a layer stacked on a layer, which in a house of this vintage is common, since the covering underfoot today is often not the original one and sometimes not the second.

The mistake this page exists to prevent

Adding a layer to save a day, and then discovering that the bedroom doors will not clear, the front door drags on the mat, the top stair has gone shallow and the dishwasher will not go back under the counter. At that point the new floor either comes up, which is the expensive version of the job you were trying not to do, or every door in the house gets trimmed and the stair gets solved with a piece of trim that fools nobody.

It is entirely avoidable, and it is avoided with a tape measure rather than with a decision. Nobody has to guess about this.

How to tell which one your house is asking for

• Measure the gap under every interior door at its leading edge, and write the numbers down. That single list decides more of this question than any preference does.
• Count the layers where they are visible. Pull a floor vent and look at the cut edge, or lift a corner of carpet at a threshold. Two layers already down usually settles the argument.
• Walk the floor slowly in socks and listen. Movement, a hollow ring under tile, or a soft patch means the answer is underneath, and adding a layer will not change it.
• Look at the top and bottom stair. A flight that already has a shallow riser from a previous job cannot absorb another one.
• Check where an appliance sits under a counter and how much room is above it. Height added at the floor comes off that gap.

Then have it looked at. The subfloor, the doorways, the stairs and the transitions all get checked in person during the free in-home measure, and whatever preparation the floor needs gets written into the quote at that point rather than turning up later. Chesterfield and the free measure question cover the neighbouring ground, and the rest of the four county map works the same way. Call 636-332-0654 with your room list.